Aerospace Dynamics International Inc

Active WDID 4 19I024961 Valencia, Los Angeles County Region 4 · Los Angeles

At a glance

Permit Evidence: SMARTS record
Active Industrial
Notice of Intent (WDID code I) · Permits and applications
Location Evidence: facility-reported
Valencia, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
Santa Clara River (as reported by the facility)
Evidence: candidate, awaiting review Details
Identified receiving water on the 2026 303(d) list
Not established
Shown only when the reported receiving water is identified and corroborated.
2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
3 waterbodies; 2 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
678 distinct results, 11 reporting years (2015 to 2026)
Most recent sample Sep 06, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
1 inspection · 3 violation records · 2 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
0 records
TMDL records

Each label shows where a statement comes from. How to read the labels.

Overview and location

Reported facility location HUC12 watershed Corroborated receiving water 2026 Integrated Report waterbodies nearby

Open this facility on the statewide map

Reported location Evidence: facility-reported

Coordinates
34.43399, -118.58331
Precision
5 decimal places
Shared point
No
Matches application record
same

Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.

Facility address
25540 Rye Canyon Road, Valencia 91355
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • Salt Canyon-Santa Clara River HUC12 180701020403

The facility's reported location lies within this HUC12 watershed (spatial derivation); it is not a discharge location.

Permits and applications Evidence: SMARTS record

Current permit record

Permit type
Industrial
Application type
Notice of Intent (WDID code I)
Status
Active
Operator
Aerospace Dynamics International Inc
Primary industry (SIC)
3728-Aircraft Parts and Auxiliary Equipment, NEC
Application ID
448042
NOI processed
Jul 17, 2014
Last certified
Jan 29, 2025
Facility size
22 Acres
Impervious area
84 %

Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
448042 IndustrialActiveJul 17, 2014 —Jan 29, 2025

Every storm water application SMARTS records for this WDID, newest first (1).

Receiving water

Reported by the facility Evidence: facility-reported
Santa Clara River
Discharges directly / indirectly
N / Y (as answered in the permit application)

Evidence: not confirmed Evidence: candidate, awaiting review Awaiting review

Receiving-water text as reported by the discharger in SMARTS; no waterbody identification has been confirmed.

Why it is not confirmed (1)
  • C1 name is only a prefix of official names

13 official waterbodies share this name; none is assigned without review.

Impaired waters and TMDLs

Two kinds of information, kept apart: 2026 Integrated Report waterbodies near the reported location (geographic proximity only), and TMDL records that SMARTS lists for this facility. Neither establishes where the facility discharges; see Receiving water for the facility's own statement.

Nearby waterbodies Evidence: geographic proximity

Spatial proximity only; discharge pathway not established. Being near a waterbody does not mean the facility discharges to it.

Nearest 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
Santa Clara River Reach 5 (Blue Cut gaging station to West Pier Hwy 99 Bridge) (was named Santa Clara River Reach 7 on 2002 303(d) list) CAR4035100019990203102901873 m listed13
Santa Clara River Reach 6 (W Pier Hwy 99 to Bouquet Cyn Rd) (was named Santa Clara River Reach 8 on 2002 303(d) list) CAR4035100019990204123459877 m listed4
Unnamed Tributary to Santa Clara River Reach 5 (Los Angeles County) CAR4035100020220915036626975 m not listed0

Waterbodies within 1.0 km of the reported facility location. Method proximity/1.

SMARTS TMDL records Evidence: SMARTS-reported

No TMDL records for this facility in the SMARTS TMDL export.

Reported monitoring results Evidence: facility-reported

Numeric Action Level (NAL) screening is being independently validated and is not shown. Nothing on this page states whether a result exceeded a NAL.

678 distinct measurements across 12 parameters, most recent sample Sep 06, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2026408 0 Sep 06, 2026Sep 06, 2026
20251688 0 Sep 18, 2025Apr 12, 2026
20241209 10 Jan 26, 2025Apr 26, 2025
2023255 0 Mar 06, 2024Mar 06, 2024
2022255 0 Nov 07, 2022Nov 07, 2022
2021505 0 Oct 25, 2021Mar 28, 2022
2019745 0 Nov 27, 2019Mar 12, 2020
2018445 0 Nov 29, 2018Jan 31, 2019
2017445 0 Jan 08, 2018Mar 02, 2018
2016485 0 Nov 20, 2016Feb 17, 2017
2015453 0 Sep 09, 2015Mar 11, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
pHSU136 0Sep 09, 2015Sep 06, 2026 Results
Oil and Greasemg/L120 47Sep 09, 2015Sep 06, 2026 Results
Total Suspended Solids (TSS)mg/L119 11Sep 09, 2015Sep 06, 2026 Results
Copper, Total Recoverablemg/L60 0Nov 20, 2016Jan 26, 2025 Results
Iron, Total Recoverablemg/L60 3Nov 20, 2016Jan 26, 2025 Results
Copper, Totalmg/L41 0Feb 05, 2025Sep 06, 2026 Results
Iron, Totalmg/L41 12Feb 05, 2025Sep 06, 2026 Results
Aluminum, Totalmg/L26 0Sep 18, 2025Sep 06, 2026 Results
Nickel, Totalmg/L26 2Sep 18, 2025Sep 06, 2026 Results
Zinc, Totalmg/L26 0Sep 18, 2025Sep 06, 2026 Results
Copper, Dissolvedmg/L10 0Jan 26, 2025Feb 05, 2025 Results
Iron, Dissolvedmg/L5 5Feb 05, 2025Feb 05, 2025 Results
Show 2 more parameters
More parameters
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Copper, Total Recoverableug/L4 0Nov 29, 2018Nov 29, 2018 Results
Iron, Total Recoverableug/L4 0Nov 29, 2018Nov 29, 2018 Results

All results (683 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Sep 06, 2026 Aluminum, Total .152 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Aluminum, Total .344 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Aluminum, Total .358 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Aluminum, Total .13 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Aluminum, Total .575 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Copper, Total .0568 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Copper, Total .0357 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Copper, Total .0681 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Copper, Total .0398 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Copper, Total .0397 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Iron, Total .28 mg/L Effluent Qualifying Storm Event E200.7 1396666
Sep 06, 2026 Iron, Total .24 mg/L Effluent Qualifying Storm Event E200.7 1396666
Sep 06, 2026 Iron, Total DNQ .08 mg/L Effluent Qualifying Storm Event E200.7 1396666
Sep 06, 2026 Iron, Total ND mg/L Effluent Qualifying Storm Event E200.7 1396666
Sep 06, 2026 Iron, Total .75 mg/L Effluent Qualifying Storm Event E200.7 1396666
Sep 06, 2026 Nickel, Total .026 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Nickel, Total .015 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Nickel, Total .0082 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Nickel, Total .0028 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Nickel, Total .0084 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1396666
Sep 06, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1396666
Sep 06, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1396666
Sep 06, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1396666
Sep 06, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1396666
Sep 06, 2026 pH 6 SU Effluent Qualifying Storm Event pH_Field 1396666
Sep 06, 2026 pH 7 SU Effluent Qualifying Storm Event pH_Field 1396666
Sep 06, 2026 pH 6 SU Effluent Qualifying Storm Event pH_Field 1396666
Sep 06, 2026 pH 6 SU Effluent Qualifying Storm Event pH_Field 1396666
Sep 06, 2026 pH 6 SU Effluent Qualifying Storm Event pH_Field 1396666
Sep 06, 2026 Total Suspended Solids (TSS) 5 mg/L Effluent Qualifying Storm Event A2540D 1396666
Sep 06, 2026 Total Suspended Solids (TSS) 6 mg/L Effluent Qualifying Storm Event A2540D 1396666
Sep 06, 2026 Total Suspended Solids (TSS) 7 mg/L Effluent Qualifying Storm Event A2540D 1396666
Sep 06, 2026 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1396666
Sep 06, 2026 Total Suspended Solids (TSS) 13 mg/L Effluent Qualifying Storm Event A2540D 1396666
Sep 06, 2026 Zinc, Total .136 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Zinc, Total .0496 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Zinc, Total .228 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Zinc, Total .0484 mg/L Effluent Qualifying Storm Event E200.8 1396666
Sep 06, 2026 Zinc, Total .155 mg/L Effluent Qualifying Storm Event E200.8 1396666
Apr 12, 2026 Aluminum, Total .141 mg/L Effluent Qualifying Storm Event E200.8 1371606
Apr 12, 2026 Copper, Total .0242 mg/L Effluent Qualifying Storm Event E200.8 1371606
Apr 12, 2026 Iron, Total ND 0 mg/L Effluent Qualifying Storm Event E200.7 1371606
Apr 12, 2026 Nickel, Total .001 mg/L Effluent Qualifying Storm Event E200.8 1371606
Apr 12, 2026 Oil and Grease ND 0 mg/L Effluent Qualifying Storm Event E1664A 1371606
Apr 12, 2026 pH 7.9 SU Effluent Qualifying Storm Event pH_Field 1371606
Apr 12, 2026 Total Suspended Solids (TSS) ND 0 mg/L Effluent Qualifying Storm Event A2540D 1371606
Apr 12, 2026 Zinc, Total .0206 mg/L Effluent Qualifying Storm Event E200.8 1371606
Feb 16, 2026 Aluminum, Total .17 mg/L Effluent Qualifying Storm Event E200.8 1369632
Feb 16, 2026 Aluminum, Total .0648 mg/L Effluent Qualifying Storm Event E200.8 1369632

Results are shown exactly as reported by the discharger. Identical rows repeated in the State's export are shown once. Where the export contains different versions of the same sample and parameter, each version is listed and flagged. Details.

Compliance and enforcement records Evidence: SMARTS record

These are records as the State Water Board publishes them in SMARTS, with the source's own types and statuses. They are not a compliance determination or rating. A record listed here is not proof of a violation beyond what the source states, and the absence of records does not establish compliance.

Compliance and enforcement records by type
Record typeRecordsAs publishedDatesRetrievedList
Violations3 3 Violation · 0 Potential (preliminary) · 0 Dismissed Jan 01, 2020 – Oct 01, 2021 Oct 21, 2026 All violations
Enforcement actions2 2 issued · 0 draft · 0 withdrawn, rescinded or superseded Feb 21, 2020 – Feb 09, 2022 Oct 21, 2026 All actions
Inspections1inspections, not findings Oct 01, 2021 – Oct 01, 2021 Oct 21, 2026 All inspections
Annual reports11certified reports (contents not shown) 2015 – 2025 Oct 21, 2026 All reports
Water-quality-based corrective action reports0reports, by parameter — Oct 21, 2026

Each record type is counted by its own SMARTS identifier. A violation and the enforcement action that cites it are two records in two lists; they are never added together.

Chronological record history (17 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 15, 2026 Annual reports 1338370 Annual report 2025 —
Jul 15, 2025 Annual reports 1297359 Annual report 2024 —
Jul 19, 2024 Annual reports 1246589 Annual report 2023 —
Jul 31, 2023 Annual reports 1192746 Annual report 2022 —
Aug 30, 2022 Annual reports 1116473 Annual report 2021 —
Feb 09, 2022 Enforcement actions 446134 NOV (Notice of Violation) Historical
Oct 01, 2021 Inspections 2053605 B Type compliance FinalizedNo Further Action
Oct 01, 2021 Violations 877843 Deficient BMP Implementation ViolationInspection
Sep 21, 2021 Violations 881389 Effluent ViolationInternal Report
Jul 15, 2021 Annual reports 1064639 Annual report 2020 —
Jul 15, 2020 Annual reports 981665 Annual report 2019 —
Feb 21, 2020 Enforcement actions 436361 NOV (Notice of Violation) Historical
Jan 01, 2020 Violations 872768 Late Report ViolationReport
Aug 23, 2019 Annual reports 957988 Annual report 2018 —
Jul 16, 2018 Annual reports 943434 Annual report 2017 —
Jul 14, 2017 Annual reports 882984 Annual report 2016 —
Aug 10, 2016 Annual reports 840244 Annual report 2015 —

Sources and provenance

Sources behind this page
InformationSourceRetrieved or published
Permit, location, receiving-water textSMARTS Industrial Application Specific DataOct 20, 2026
Permit historySMARTS Storm Water ApplicationsOct 20, 2026
Monitoring resultsSMARTS Industrial Parameter DataOct 20, 2026
Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12)USGS2026-10-22
2026 California Integrated Report, Appendix A: 2026 303(d) List (final)SWRCB2026-10-22
Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0)SWRCB GIS2026-10-22
SMARTS TMDL requirementsSMARTS2026-10-21

Relationships computed 2026-10-22 with methods facility_huc12/1, proximity/1, receiving_water/2, tmdl_reference/1, waterbody_huc12_ovl/1, waterbody_huc12_pub/1; proximity threshold 1.0 km.

How to read the evidence labels

Records are shown as published and are not compliance determinations. How geographic context is derived.